时间:2018-12-01 作者:英语课 分类:2010年VOA慢速英语(十二)月


英语课

This is the VOA Special English Health Report.


When parents go to work, their young children often spend the day in child care. That contact with other children can make it easier to get sick. But new research suggests that this might have a protective effect a few years later when children start school.


A research team looked at data from a large study. That study followed the health of a group of Canadian children for almost their first ten years of life.


Sylvana Cote at the University of Montreal led the research team. She says some of the children were more likely to get sick from the kinds of infections commonly passed around a day care center. But she says these children were also more likely to avoid infections when they entered elementary school a few years later.


SYLVANA COTE: "Children who started child care early -- that is, before two and a half years -- and who attended child care where there were a large group of children, they have lower rates of infections than children who either never went to day care or children who went to small-group day care."


Sylvana Cote says her study was not really designed to explain why children who started day care early with many other children had fewer infections later. But she says there is a non-medical reason why getting sick early might be better: it reduces the risk of having to stay home from school.


SYLVANA COTE: "We argue in the paper that missing school when you're starting to learn to read or when you learn to write may be more problematic for the future academic trajectory 1 than missing day care days."


The research appears in the Archives of Pediatric and Adolescent Medicine, a journal of the American Medical Association.



Chantal Compaore, the wife of Burkina Faso's president, holds a young boy during the launch of a new vaccination 2 campaign against meningitis December 6


Some diseases can be prevented by vaccines 4. This month, the World Health Organization launched the first vaccine 3 ever developed for Africa.


The vaccine is designed to provide ten years of low-cost protection against meningococcal A. This bacterial 5 form of meningitis can cause brain damage and death. Major epidemics 6 strike Africa every seven to fourteen years. Children and young adults are the hardest hit.


Last year, an outbreak across sub-Saharan Africa killed more than five thousand people. The WHO says as many as four hundred fifty million people across Africa are at risk from meningitis.


The new vaccine is called MenAfriVac. It can be given to children as young as one, which is earlier than vaccines currently used to fight meningitis epidemics n Africa.


Health workers launched the new vaccine in Burkina Faso in West Africa. There are twenty-five countries along Africa's so-called meningitis belt from Senegal to Ethiopia. The hope is that people in all twenty-five countries will be protected against the disease by twenty-fifteen.


And that's the VOA Special English Health Report. I'm Steve Ember.



1 trajectory
n.弹道,轨道
  • It is not difficult to sketch the subsequent trajectory.很容易描绘出它们最终的轨迹。
  • The path followed by a projectile is called its trajectory.抛物体所循的路径称为它的轨道。
2 vaccination
n.接种疫苗,种痘
  • Vaccination is a preventive against smallpox.种痘是预防天花的方法。
  • Doctors suggest getting a tetanus vaccination every ten years.医生建议每十年注射一次破伤风疫苗。
3 vaccine
n.牛痘苗,疫苗;adj.牛痘的,疫苗的
  • The polio vaccine has saved millions of lives.脊髓灰质炎疫苗挽救了数以百万计的生命。
  • She takes a vaccine against influenza every fall.她每年秋季接种流感疫苗。
4 vaccines
疫苗,痘苗( vaccine的名词复数 )
  • His team are at the forefront of scientific research into vaccines. 他的小组处于疫苗科研的最前沿。
  • The vaccines were kept cool in refrigerators. 疫苗放在冰箱中冷藏。
5 bacterial
a.细菌的
  • Bacterial reproduction is accelerated in weightless space. 在失重的空间,细菌繁殖加快了。
  • Brain lesions can be caused by bacterial infections. 大脑损伤可能由细菌感染引起。
6 epidemics
n.流行病
  • Reliance upon natural epidemics may be both time-consuming and misleading. 依靠天然的流行既浪费时间,又会引入歧途。
  • The antibiotic epidemics usually start stop when the summer rainy season begins. 传染病通常会在夏天的雨季停止传播。
学英语单词
adiabatic membrance
Albustix test
anti-vignette
asymmetric auto-catalysis
basic link
be pooped out
bird clutter
bottom delta
Bright Bessemer Wire
chelogenic cycle
chip up
chloranthaceous
Chromecast
commencement of winding-up
common winding
computer users association
condylar post
converges
Corydalis kingii
cysterethism
database semantic integrity
Dermosyphilography
dexpramipexole
disputest
distortionless filter
driving over belt
educational adviser
Expidet
firefighters
fletts
framed mattress
gloniopsis praelonga
Gutteit test
harness oil
helfrich interaction
heredo-akinesia
ideal of a lattice
integral square estimation
interquartile
interval limit
IPOF
Kingdom of Lesotho
lady godivas
Lothario
magnesium isovalerate
maor
maximum height of lift
Merina
microsporocarp
mii
morning-glory family
myodiastasis
new-create
niftic
nobuhikoes
nonsinusoidal wave form
Nucleos
olsen memory
oriented system of coordinates neighbourhood
over-mix
oxygenizement
panfuran-S tablet
pars caeca retinae
phalanque
potable water
pressor areas
primary products
pseudohallucination
radar fire control
real time reconnaissance
recurrent sensibility
Rhododendron cephalanthum
rhombic prism
Rorippa atrovirens
Russian capital
Sarcina flava
scrine
scummered
shmaltz
sifting motion
skeletocutis nivea
smokeless coal
squint deviation
stick mixing tank
summer flowering
synase
tank up
tape-driver interrupt routine
tapping of resources
Taylor I.
taylor theorem
technophobe
the cold months of the year
thiambutenes
travertine terrace
Trinity high water
tubelesses
vonettas
working agreement
working parameter
yamashita
Yurkovka